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Please assist - I cannot identify this device. I try to label all my SMT components, but this one has slipped through the net.

It appears to have a "f" as a logo; the text blocks are P636F; FDS and 6690A.

Also, as a more general question, what resources are recommended for tracking down such items?

photo of device

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Google is your first choice. Searching for FDS 6690A brought up this datasheet on the first page. The "F" would indicate that it was originally a Fairchild product, which ON semi acquired some time ago.

FDS6690A Single N-Channel, Logic-Level, PowerTrench MOSFET

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  • \$\begingroup\$ Thanks. I was searching on the wrong term - P636F produced nothing. \$\endgroup\$ – henros Feb 18 at 16:20
  • \$\begingroup\$ Usually one of the markings is a datecode and/or manufacturing location. Searching for all the markings will likely get a correct hit. google.com/search?q=P636F+FDS+6690A \$\endgroup\$ – Phil G Feb 18 at 16:44

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